口腔英语会话

urface of the gum. It will lessen the discomfort of the injection. 我将用表麻药来麻醉您的牙龈。
7. You may feel a little sting when I give the injection. 当我注射麻药时，您可能会感觉到有点针刺感。
8. Are your lips and tongue numb? 您的嘴唇和舌头麻了吗？
9. The anesthetic will take effect in about four minutes. 四分钟左右麻药会起效。
10. The anesthetic will wear off in about two or three hours. 两三小时后麻醉效果会消失。
11. The numb feeling will continur for two or three hours. While eating, please be careful not to bite on your lips or tongue. 麻木的感觉会持续两三个小时。

九．tooth brushing instruction 刷牙指导
1. Please hold this hand mirror and look in your mouth, can you see the redness in your gums? 拿着镜子看看自己的口腔，看见您的牙龈很红了吗？
2. Now, I will show you how to brush your teeth using this dental model. Place the toothbrush at the junction of the gums and the teeth like this. Place the bristles of the brush ninety degrees to the gumline. 现在我将在模型上演示如何刷牙，将牙刷放在牙龈和牙齿的联合部位。刷毛和牙龈缘呈90度。
3. Move the tooth brush back and forth with short, vibrating stokes. 用短距离，振动的力量前后移动牙刷。
4. Please move the brush downwards on the upper teeth and upwards on the lower teeth. 刷上颌时牙刷应向下移动，刷下颌时牙刷应向上移动。
5. Move it in a circular motion about ten times at the same place.每部位刷十次。
6. You should change your brush when the bristles get frayed. 当牙刷毛变弯曲时您应该更换牙刷。
7. Your brush should be replaced about once every mouth. 每月换一次牙刷。
8. Dental floss is used to clean between your teeth. 牙线可用来清洁牙间隙。
9. First take about forty centimeters of floss. 首先准备40CM长的牙线。
10. Wrap the floss around your middle fingers like this. 象这样将牙线饶在中指上。
11. Control the floss by pinching it with index fingers and thumbs like this. 通过示指和拇指的牵拉来控制牙线。
12. Put one finger in the mouth, and the other outside. 一个手指在口内，另一个在口外。
13. Use an up-and-down scrapping motion on the sides of each tooth. 在每个牙的各个面上下摩擦。
14. If your interdental space is large, you had better use interdental brush to clean between the teeth. 如果您的间隙太大 最好用间隙刷。

十． Instructions after treatments 各种治疗后的主义事项
(filling) 补牙
1. Don’t eat anything for one hour. 一个小时内不要吃任何东西。
2. Don’t chew on the right side of your mouth for at lease two hours. 2小时内不要用
您的右侧吃东西。
3. The tooth may be sensitive to cold food for a while.以后一段时间，您的牙齿可能对冷食物敏感。
4. There is a possibility that the nerve will die in the